Double Wall Spiral Duct Dimensions

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Double wall spiral duct dimensions.

Duct direct 8610 wallisville rd. This insulation has thermal conductivity of 0 26 btu in hr. Smc double wall round spiral duct is a dependable erosion resistant alternative to lined round spiral duct providing improved protection for insulation exposed to the airstream. Gauge schedule size dia.

Spiral pipe 3 16 26 18 26 24 28 40 22 42 50 20 52 84 18 gauge schedule size dia. Houston texas 77029 phone. Spiral double wall duct size pipe outer wall size inner wall positive pressure to 10 w g. For these cases the inner liner does not project beyond the outer shell x 0 inches and a slip fit.

Dual wall double wall insulated spiral is available with solid or perforated liners. Surface burning characteristics are. X 2 inches for inner liner minor axis dimensions greater than 7 inches double wall duct and fittings can be ordered with van stone or applied connectors installed on the outer shell. Galvanized and ss are available.

1 2 and 3 insulation thicknesses are available. Wonderflanges can be used on 1 2 3 or 4 double wall spiral pipe and fittings. Dual wall duct is also available in 2 3 and 4 thickness. Mild steel is the standard material.

Paint grip minimum gauges for spiral pipe construction. Uni gasket fittings are compatible and available with all of mcgill airflow s round double wall duct types in 1 inch increments for 5 through 12 inch diameters outer shells and in 2 inch increments in 14 through 24 inch outer shell diameters. Ft f at 75. Biyang double wall spiral duct is made of big spiral duct outside insulation in the middle and small spiral duct inside.

Wonder flange rings are fused together at the factory and arrive at the jobsite ready for mounting. Air distribution corporation spiral duct and fittings are manufactured in accordance with applicable smacna ashrae and spida standards. Biyang double wall spiral duct is also named dual wall spiral pipe double wall round duct and double wall insulated duct. Flame spread 25 and smoke developed 50.

Mylar barrier is available as a barrier between perforated liner and insulation. The outer wall performs as the pressure shell and will be constructed and sealed for the appropriate pressure class. Fittings 3 12 26 14 24 24 26 36 22 38 48 20. K value is 0 27.

It is a kind of metal duct designed and produced to offer an excellent acoustical and thermal function for hvac ductwork applications.